Sorry, I must be going dyslexic. I forgot to type "look" But yes, I mean that the iso 12800 results from the A7S look like the results I get with iso 6400 with the A7 in low light.
I would really love seeing a direct comparison between A7S photos vs downsized A7 photos. Itīs the difference between me spending us$1200 or us$2500 on second camera for the A7 I already own!
Here are some samples from my A7 and a Canon FD 50mm 1.4. I had high hopes to have much cleaner iso 6400 with the A7S in similar conditions...and much better iso 12800 (which for me is useless for professional work with the A7).